Distillers grains: Which residues are we afraid of?

The popularity of Dried Distillers Grains with Solubles (DDGS), the co-product of ethanol production, is increasing in Europe due to a shortage of protein raw materials. But apart from GM-issues, imports also need to be screened for antibiotics, since these products are used in the fermentation process to fight lactic acid bacteria that compete with yeast for the sugars to make ethanol. More alternatives to antibiotics are becoming available though. Antibiotics are a sensitive subject in anima